Learn to build an RFID based attendance system using Arduino with step-by-step instructions, circuit diagrams, and complete code. This $35 DIY project replaces expensive commercial systems with ...

Schematic diagram of network communication systemSchematic diagram of network communication system (IMAGE) KeAi Communications Co., Ltd.

Browse 500+ Arduino projects with downloadable code and circuit diagrams. Complete tutorials for beginners and advanced makers.

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Tech. Stack: Arduino, NodeMCU. Attendance via fingerprint sensor and Google Sheets. The student fingerprint id is registered in Google Sheets for attendance.

It uses a webcam with MediaPipe for gesture detection and a NodeMCU (ESP8266) to switch lights on/off via serial communication. It's a smart, intuitive solution for touch-free home automation ...